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Empirical-convergence development workflow. Adjudicate a claim graph — propose claims, earn each one's confidence with real external evidence (research first, then a deterministic spike where the claim is machine-checkable), discard what evidence refutes — then have an independent auditor verify the run before it may report convergence. Use when starting non-trivial work where the plan is not yet certain — 'how should we build X', 'I'm not sure whether A or B', 'design and implement this feature', 'spike this', 'we don't know if this approach works'. Two paths: known territory goes straight to finalize; unknown territory runs the empirical loop first. Invoke as /empirica <goal>.
Claude Skills are markdown + scripts loaded into Claude Code; scanned with the same pipeline.
We found this by crawling public sources and nobody has attested to it. That is how most of the registry gets here, and it is not a mark against the artifact — it only means no authenticated act of publication is on record. An artifact can be the vendor's own and still appear here.
3 critical findings reported by cisco-skill-scanner, 2 of them in the installed artifact. The composite score alone does not reflect this — read the per-scanner reports below.
Claude Skills install to a single target, no runtime picker.
nerlo install -- 'obzenner/siffran (empirica)'
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- 'obzenner/siffran (empirica)' ~/.claude/skills/
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
5 of 11 scanners examined this package. The rest do not apply to it — language, ecosystem and packaging decide which analyzers can say anything, and a scanner that cannot examine an artifact reports nothing rather than passing it.
v1.4.0
0 findings · 0.5s
v2.0.11
16 findings · 8.6s
v0.3.74
4 findings · 6.5s
v0.1.0
0 findings · 3.5s
v0.1.0
0 findings · 3.5s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.1s
v0.1.0
This scanner found nothing in this artifact that it assesses. What each scanner covers
0 findings · 0.9s
No report in this scan: govulncheck, osv-scanner, trivy, trivy_image.
1 scan on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Aug 21, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source ·n/a: not applicable | rejected |
Findings in files this artifact installs stand as reported; a model re-read the rest and said which ones it believes are false positives. This is a second opinion published beside the evidence, not a correction to it: the per-scanner reports above are unchanged, every dismissed finding is still listed there at its original severity, and the score and the Flagged badge are computed from those raw severities alone. Nothing below moved them.
Out of 20 findings across every scanner that examined this package. 1 of 3 findings rated critical by their scanner was among the dismissals.
Two keys had to turn. The model had to name a reason from a fixed list of six, and a deterministic check of ours — over which files this artifact actually installs — had to independently agree. Anything it could not corroborate is in “not reviewed” above, at full severity.
2 Agent instruction file — The match is in a file that instructs an AI coding agent — a CLAUDE.md or similar. It is documentation of intent, and our own check confirmed it is not part of what gets installed.
Rules: AAK-AGENT-005 · Files: CLAUDE.md · reported by agent-audit-kit
2 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: SOCIAL_ENG_VAGUE_DESCRIPTION, MANIFEST_MISSING_LICENSE · Files: /repo/doc/adr/SKILL.md · reported by cisco-skill-scanner
1 Test or fixture file — The match is in a test or fixture. Our own check confirmed the file is not part of what gets installed.
Rules: YARA_command_injection_generic · Files: /repo/plugins/empirica/tests/test_hooks.py · reported by cisco-skill-scanner
These findings are in files this artifact installs and are not placeholder values. No false-positive basis can be corroborated for such a finding, so this review never dismisses one; they were not sent to the model and stand at their scanner's severity.
7 MANIFEST_MISSING_LICENSE
Files: /repo/.claude/skills/checkup/SKILL.md, /repo/plugins/methodologist/skills/think/SKILL.md, /repo/plugins/empirica/skills/empirica/SKILL.md and 4 more · reported by cisco-skill-scanner
3 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/plugins/methodologist/skills/think/methodologies/SKILL.md, /repo/plugins/methodologist/skills/think/references/SKILL.md · reported by cisco-skill-scanner
2 AAK-MARKETPLACE-001
Files: .claude-plugin/marketplace.json · reported by agent-audit-kit
2 YARA_command_injection_generic
Files: /repo/plugins/empirica/hooks/actors.py · reported by cisco-skill-scanner
1 YARA_system_manipulation_generic
Files: /repo/plugins/empirica/hooks/dispatch_gate.py · reported by cisco-skill-scanner
Artifact contains critical command injection and system manipulation capabilities.
The artifact includes critical command injection capabilities within `/repo/plugins/empirica/hooks/actors.py`, which could lead to shell execution. Additionally, it has high-severity system manipulation capabilities in `/repo/plugins/empirica/hooks/dispatch_gate.py`. There are also high-severity issues related to marketplace configuration in `.claude-plugin/marketplace.json`.
Concern level assessed by the review: Critical. This is the review's scale, not the registry badge.
Reviewed by gemini-2.5-flash. The model sees the findings, not your code, and cannot change a score.